From ea8935635ac6b3c4c6345abc91378fb8384023ca Mon Sep 17 00:00:00 2001 From: =?utf8?q?=C5=81ukasz=20Stelmach?= Date: Tue, 8 Mar 2022 00:22:54 +0100 Subject: [PATCH] printk: suppress printing less important messages to console MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Suppress printing to console messages with loglevel above the console_loglevel via print_sync(). Change-Id: Ia8d53fd2fadb74e323d776f053c91f7832402021 Fixes: 5d6a5a2378db ("patch-5.10.100-rt62.patch") Signed-off-by: Łukasz Stelmach --- kernel/printk/printk.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c index 7f27cfe..1523ead 100644 --- a/kernel/printk/printk.c +++ b/kernel/printk/printk.c @@ -1844,6 +1844,11 @@ static bool print_sync(struct console *con, u64 *seq) if (!prb_read_valid(prb, *seq, &r)) return false; + if (suppress_message_printing(r.info->level)) { + *seq = r.info->seq; + return true; + } + text_len = record_print_text(&r, console_msg_format & MSG_FORMAT_SYSLOG, printk_time); if (!call_sync_console_driver(con, &con->sync_buf[0], text_len)) -- 2.7.4